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History

Jiri Pirko 8f1948bdcf genetlink: hold read cb_lock during iteration of genl_fam_idr in genl_bind()

In genl_bind(), currently genl_lock and write cb_lock are taken
for iteration of genl_fam_idr and processing of static values
stored in struct genl_family. Take just read cb_lock for this task
as it is sufficient to guard the idr and the struct against
concurrent genl_register/unregister_family() calls.

This will allow to run genl command processing in genl_rcv() and
mnl_socket_setsockopt(.., NETLINK_ADD_MEMBERSHIP, ..) in parallel.

Reported-by: Vikas Gupta <vikas.gupta@broadcom.com>
Signed-off-by: Jiri Pirko <jiri@nvidia.com>
Link: https://lore.kernel.org/r/20220825081940.1283335-1-jiri@resnulli.us
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

2022-08-26 18:47:21 -07:00

af_netlink.c

Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

2022-05-12 16:15:30 -07:00

af_netlink.h

netlink: Add new socket option to enable strict checking on dumps

2018-10-08 10:39:04 -07:00

diag.c

treewide: Add SPDX license identifier for more missed files

2019-05-21 10:50:45 +02:00

genetlink.c

genetlink: hold read cb_lock during iteration of genl_fam_idr in genl_bind()